Add to cart
Discover Energy Systems 950-0070 HELIOS ESS 2/0 Battery to Inverter Cable Set Discover Energy Systems 950-0070 HELIOS ESS 2/0 Battery to Inverter Cable Set $193.95
Fronius | Smart Meter, WR 100 - 600 Fronius | Smart Meter, WR 100 - 600 $259.95
energy systems|SKU:950-0068

Discover Energy HELIOS ESS Parallel Battery Cable Set

Expand Your Helios ESS Storage Capacity

Scale Your Storage — Parallel-connect Helios ESS batteries for more capacity
Plug-and-Play Setup — Reduces wiring complexity during installation
Synchronized Battery Communication — CAT6 cable keeps battery modules properly aligned
Heavy-Duty Power Conductors — 2/0 gauge cables support robust current flow
  • Free Shipping -- Ships free to your door, no minimums

$166.95

0 in stock

Add to Cart
Discover Energy Systems 950-0068 HELIOS ESS 2/0 Parallel Battery to Battery Cable Set
Discover Energy Systems 950-0068 HELIOS ESS 2/0 Parallel Battery to Battery Cable Set
$166.95

30-day money back · No restocking fee

🔒 100% Secure Checkout

Visa Mastercard American Express Apple Pay Google Pay Klarna Link by Stripe
Free Returns 30-day hassle-free returns.
Free Delivery Every order, every time.
Ships in 3–5 Days Heavy-duty crating included.
4.9/5 Stars 2,400+ verified reviews.

In the box

  • 1x CAT6 communication cable
  • 1x positive 2/0 gauge cable (1.35 m)
  • 1x negative 2/0 gauge cable (1.35 m)
Discover Energy Systems 950-0068 HELIOS ESS 2/0 Parallel Battery to Battery Cable Set
Discover Energy HELIOS ESS Parallel Battery Cable Set
$166.95

Expand Your Helios ESS Storage Capacity

This vetted cable set from Discover Energy Systems gives you a straightforward, reliable way to parallel-connect Helios ESS batteries and scale your total storage capacity. Each connection is built with heavy-duty 2/0 gauge conductors and integrated CAT6 communication wiring to keep your battery modules properly synchronized. A smart investment for anyone expanding a grid-independent energy system, it handles robust current flow while reducing resistance and energy loss. Ships free.

FREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORT
2/0 Gauge Conductors
Parallel Expansion Ready
Plug-and-Play Setup
CAT6 Comm Wiring
3
Max Batteries via Cable Sets
2/0
Cable Gauge
1.35 m
Cable Length
Reliable Parallel Expansion Without Guesswork

Reliable Parallel Expansion Without Guesswork

When you add batteries to your energy system, mismatched communication is what causes failures under load. This curated cable set eliminates that risk with an integrated CAT6 communication cable that keeps your Helios ESS modules perfectly synchronized. The heavy-duty 2/0 gauge conductors deliver robust current flow while reducing electrical resistance and energy losses. Off Grid Vault selected this set because it meets strict electrical safety standards for high-performance ESS installations — no guesswork, no compromised connections. Plug-and-play design means you spend less time wiring and more time building a self-reliant system that actually works when you need it.

Expand Capacity With Confidence

Expand Capacity With Confidence

Each parallel cable set lets you connect two Helios ESS batteries, adding usable storage without rewiring your entire system. The 1.35-meter cable length gives you enough reach for most battery rack configurations while keeping runs short enough to maintain efficiency. You can connect up to three batteries using these parallel cable sets, giving you room to grow your off-grid proven setup over time. For larger installations requiring more than three batteries, an external busbar handles the heavier demands. This modular approach respects your investment — buy what you need now, expand later without replacing cables.

Installation That Doesn't Fight You

Installation That Doesn't Fight You

Complex wiring is one of the biggest reasons energy storage projects stall. This cable set uses a plug-and-play design that simplifies the parallel connection process significantly. Positive and negative 2/0 gauge cables are clearly designated, and the CAT6 communication cable integrates directly into your Helios ESS battery modules. No custom crimping, no hunting for the right connectors, no second-guessing your pinout. The set is purpose-built for residential, commercial, and light industrial installations where getting it right the first time matters. Ships free from Off Grid Vault with a 30-day hassle-free return window so you can verify fit before committing.

Compatibility Check

Confirm this cable set matches your battery system before ordering.

  • Uses Discover Energy HELIOS ESS battery modules
  • Parallel battery configuration (not series)
  • System limited to three batteries without external busbar

Built For

Real-world applications where this parallel cable set delivers reliable performance.

Residential Solar Storage
Commercial ESS Installations
Light Industrial Backup

Full specifications

Full specifications5 data points across 4 categories

Dimensions

Cable Length1.35 m

Power & Performance

Cable Gauge2/0
Communication CableCAT6

Materials

Conductor TypeSee product page

Compliance & Warranty

Safety StandardsMeets electrical safety standards for high-performance ESS installations

The Off Grid Vault Promise

What you get when you buy from us — no exceptions.

Vetted for Real-World UseEvery product is evaluated for build quality and field performance before we list it.
Ships FreeFree shipping on every order, no minimums and no fine print.
30-Day Hassle-Free ReturnsIf it doesn't work for your setup, send it back within 30 days.
★★★★★
“Added a second Helios battery to my cabin system using this cable set. The plug-and-play design made it straightforward — no crimping, no troubleshooting. Batteries synced up immediately through the CAT6 cable and my monitoring shows them charging and discharging evenly. Exactly what I needed to get more overnight capacity without complications.”
F
First L.Flagstaff, AZ

Discover Energy Systems HELIOS ESS 2/0 Parallel Battery to Battery Cable Set

The Discover Energy 950-0068 HELIOS ESS Parallel Battery-to-Battery Cable Set is designed to connect multiple Helios ESS batteries together in a parallel configuration safely and efficiently. It provides a straightforward way to increase total storage capacity while maintaining stable power flow and reliable communication between battery modules.

Built with premium-grade power conductors and integrated communication wiring, the 950-0068 cable set helps keep connected batteries properly synchronized while reducing electrical resistance and energy losses. This makes it well suited for expandable energy storage systems across residential, commercial, and light industrial installations where flexibility, performance, and safety are essential.

  • Parallel Expansion Designed to connect two Helios ESS batteries in parallel for increased capacity.
  • Includes 1x CAT6 communication cable, 1x positive 2/0 gauge cable, and 1x negative 2/0 gauge cable (each 1.35 m length).
  • Heavy-duty 2/0 gauge cables support robust current flow and efficient power sharing.
  • Plug-and-Play Design Simplifies installation and reduces wiring complexity.
  • Connect up to three batteries using parallel cable sets; larger systems require an external busbar.
  • Meets electrical safety standards for high-performance ESS installations.
  • Built to withstand demanding operating environments with long-term electrical stability.


Your Satisfaction with Discovery Energy Systems is Guaranteed:

  • Lowest Price Guarantee

Reviews

There are no reviews yet.

Be the first to review “Discover Energy HELIOS ESS Parallel Battery Cable Set”

Your email address will not be published. Required fields are marked *

Frequently Asked Questions

All grills ship fully assembled in heavy-duty crating. Just remove the packaging, add propane or charcoal, and cook. No tools required.
We offer free 30-day returns on all grills. If you're not completely satisfied with your purchase, contact us and we'll arrange a free pickup.
Yes — 0% interest financing is available on eligible purchases. Split into 4, 6, or 12 monthly payments with no hidden fees.
Yes. We carry a full catalog of OEM replacement parts including grates, burners, igniters, and heat shields for every brand we carry.
Absolutely. Our grills are built for all-weather use. The 304 stainless steel construction is designed to handle temperature extremes from -20°F winters to 110°F summers.
SKU: 950-0068 Category: Brand:

The Off Grid Vault Promise

What you get when you buy from us — no exceptions.

Vetted for Real-World Use Every product is evaluated for build quality and field performance before we list it.
Ships Free Free shipping on every order, no minimums and no fine print.
30-Day Hassle-Free Returns If it doesn't work for your setup, send it back within 30 days.

Related products

About energy systems Solar Accessories

energy systems is a trusted manufacturer of premium solar accessories. OffGridVault is an authorized dealer offering the full energy systems lineup with free delivery, price match guarantee, and expert support.

View all energy systems products →

Related Categories

AC/DC Enclosure 2 products Air Handlers 8 products Air Heaters 2 products Amp Hub 2 products Awnings 15 products Batteries 3 products
Join the Grill Island Community

Expert Picks, Straight to Your Inbox

No spam. Just the gear worth knowing about.

No spam. Unsubscribe anytime.